{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["biomedical", "engineering feature", "machine or equipment", "manufacturing standard"], "input": "25 % higher heat transfer density compared to conventional plate fin heat exchangers ."}
{"biomedical": [], "engineering feature": [], "machine or equipment": ["heat exchangers"], "manufacturing standard": []}